Siamak F. Shahandashti

PhD CS, MSc BSc EE
Senior Lecturer (Associate Professor)
 Cyber Security and Privacy Research Group
 Dept. of Computer Science
 University of York, UK

A Photo of Siamak Shahandashti

Quick Links


Upcoming Submission Deadlines

 Security & Privacy Conference Timeline


Latest News

2026-05-19: Our paper with Ibtihal and Helen on British users' perception, use, and concerns about authentication systems is accepted to HAISA 2026. See: ePrint, Conference Homepage
2026-03-10: Our paper, led by Charles and Karl, on multi-instance unrecoverability of iMHF-based password hashing, is accepted to ESORICS 2026. See: ePrint, Conference Homepage
2026-01-15: Our paper, led by Paddy and Eva, on participatory auditing of predictive AI, is accepted to CHI 2026. See: ePrint, Conference Homepage
Older:  News archive

Selected Recent Publications

[QWGS25] Aunam Quyoum, Mark Wong, Sebati Ghosh and Siamak F. Shahandashti. "Minoritised Ethnic People’s Security and Privacy Concerns and Responses towards Essential Online Services". SOUPS 2025: 259–278, USENIX, 2025.
 ePrint |  Open Proceedings Version |  Presentation |  BibTeX

[BAS25] Hina Binte Haq, Syed Taha Ali and Siamak F. Shahandashti. "Cuckoo's Nest: An Ultra-Lightweight DoS-Resilient Bitcoin Mempool". ICBC 2025, IEEE, 2025.
 ePrint |  DoI |  Code |  Dataset |  Slides |  Best Paper Award |  BibTeX

[CBS24] Ali Cherry, Konstantinos Barmpis and Siamak F. Shahandashti. "The Emperor is Now Clothed: A Secure Governance Framework for Web User Authentication through Password Managers". ICICS 2024, LNCS 15057: 233–252, Springer, 2024.
 ePrint |  DoI |  Code |  BibTeX

 Full Publication List


Selected Recent Funded Projects

PRIME: Protecting Minority Ethnic Communities Online
PHAWM: Participatory Harm Auditing Workbenches and Methodologies


Current Team

Research Associates:
Sebati Ghosh (on PRIME and CHEDDAR)
Marios Aristodemou (on PHAWM)

Research Students:
Ibtihal Alotaibi (PhD, with  Helen Petrie)
Henry Gray (PhD, with  Roberto Metere)
Christian Ndubisi (MScR, with Poonam Yadav)

 Full Team List (including alumni and information for prospective students)


Teaching

Current Module: Cryptography Theory and Practice (  CTAP-H /  CTAP-M )

 Full Teaching List


Selected Academic Service

Program Committee (current):

University Service (current):
 Co-Chair, Physical Sciences Ethics Committee
 Member, Information Security Board
 Member, Academic Ethics Compliance Committee

Departmental Service (selected, current):
 Lead, Cyber Security and Privacy Research Group
 Deputy Chair, Graduate School Board

 Full Academic Service List


On Other Platforms


Contact Details

 Email: x.y@york.ac.uk
    where x = siamak
    and y = shahandashti
 Public Key:  OpenPGP File
 Office: CSE/133 ( map)
 Tel: +44 1904 325413

Postal Address

Dept of Computer Science
University of York
York, YO10 5GH
United Kingdom

Previously at

  • Newcastle Uni, UK
  • ENS, Paris, France
  • Victoria Uni, Australia
  • Wollongong Uni, Australia